Anritsu Spectrum Master MS2711D Manuel utilisateur

Spectrum Master

Model MS2711D

Spectrum Analyzer

MAINTENANCE MANUAL

490 JARVIS DRIVE MORGAN HILL, CA 95037-2809 P/N: 10580-00099

REVISION: -

PRINTED:-8/< 201

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Table of Contents

1. Introduction ...........................................1

2. Description ............................................1

3. Spectrum Analyzer Frequency Accuracy ............................1

4. Spectrum Analyzer Phase Noise Verification..........................2

5. Spectrum Analyzer Second Harmonic Distortion Test.....................3

6. Spectrum Analyzer Residual Spurious Response Test .....................4

7. Spectrum Analyzer Resolution Bandwidth Accuracy Test...................6

8. Spectrum Analyzer Measurement Accuracy Verification ...................9

9. Power Monitor Verification (Option 5).............................17

10. Bias Tee (Option 10) Verification ...............................19

11. Bias Tee Verification (Option 10A) ..............................19

12. Transmission Measurement Verification (Option 21) ....................21

13. Power Meter Verification (Option 29) ............................23

14. FCN4760 Frequency Converter Verification.........................25

15. Battery Pack Removal and Replacement...........................31

16. Battery Information......................................33

17. Front Panel Assembly Removal and Replacement......................34

18. LCD Assembly Replacement .................................36

19. Key Pad PCB Replacement ..................................37

20. Key Pad Membrane Replacement ..............................38

21. Main PCB Assembly Replacement ..............................38

22. Option 5 Power Monitor PCB Assembly Replacement ...................40

23. Accessories and Replaceable Parts ..............................41

24. Customer Service .......................................43

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1. Introduction

This manual provides maintenance instructions for the Spectrum Master Model MS2711D Spectrum An-

alyzer. It describes the product and provides performance verification procedures, parts replacement pro-

cedures, and a replaceable parts list.

2. Description

The Spectrum Master MS2711D is a handheld spectrum analyzer with optional power meter (Option 29)

and transmission measurement (Option 21) capabilities.

The following sections contain tests that can be used to verify the performance of the Spectrum Master

Model MS2711D.

3. Spectrum Analyzer Frequency Accuracy

The following test can be used to verify the CW frequency accuracy of the Spectrum Master.

a. Equipment Required:

·Anritsu MG3692A Synthesized Signal Source, with option 15A or equivalent

·Anritsu 34RSN50 50 ohm adapter or equivalent

·Anritsu 15NNF50-1.5C RF Coaxial Cable or equivalent

·10 MHz Reference Standard

·BNC male to BNC male coaxial cable

b. Procedure:

1. Connect the 10 MHz reference source to the Anritsu MG3692A Synthesized Signal Source.

2. Connect the output of the source to the RF Input of the Spectrum Master.

3. Connect the external power supply (Anritsu part number 40-168) to the Spectrum Master.

4. Press and hold the ESCAPE/CLEAR key, then press the ON/OFF key to turn on the Spectrum Mas-

ter. (This sets the instrument to the factory preset state.)

5. Turn on the 10 MHz reference source and the Anritsu MG3692A Synthesized Signal Source.

6. Set the MG3692A output to 2000 MHz CW, with an RF output level of 0 dBm.

NOTE: Before continuing, allow a 30-minute warm up for the internal circuitry to stabilize.

7. Press the AMPLITUDE key and the Ref Level soft key.

8. Enter 20 and press the ENTER key to set the Reference Level to 20 dBm.

9. Press the FREQ/SPAN key and the Center soft key.

10. Enter 2000 and press ENTER to set the center frequency to 2000 MHz.

11. Press the Span soft key, enter 20, and press the kHz soft key to set the span to 20 kHz.

12. Confirm that the RBW is 100 Hz, and the VBW is 30 Hz. If adjustment of the RBW and VBW are

required:

(a) Press the BW/SWEEP key and the Bandwidth soft key.

(b) Press the RBW Manual soft key and use the Up/Down arrow key to select 100 Hz. Press ENTER

to set the resolution bandwidth to 100 Hz.

set the video bandwidth to 30 Hz.

13. Press the MARKER key, then the M1 soft key.

14. Select the Edit soft key and use the Up/Down arrow key to center the marker on the waveform.

Verify that the marker frequency is 2000 MHz ±4 kHz.

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4. Spectrum Analyzer Phase Noise Verification

This test can be used to verify the phase noise of the Spectrum Master.

a. Equipment Required:

·Anritsu MG3692A Synthesized Signal Source, with options 2A, 4 and 15A, or equivalent

·Anritsu 34RSN50 50 ohm adapter or equivalent

·Anritsu 15NNF50-1.5C RF Coaxial Cable or equivalent

b. Procedure:

1. Connect the output of the source to the Spectrum Master RF Input.

2. Connect the external power supply (Anritsu part number 40-168) to the Spectrum Master.

3. Press and hold the ESCAPE/CLEAR key, then press the ON/OFF key to turn on the Spectrum Mas-

ter. (This sets the instrument to the factory preset state.)

NOTE: Before continuing, allow a 30-minute warm up for the internal circuitry to stabilize.

4. Set the MG3692A output to 1000 MHz CW, with an RF output level of –30 dBm.

5. Press the BW/SWEEP key and the Bandwidth soft key.

6. Press the RBW Manual soft key and use the Up/Down arrow key to select 1 kHz. Press ENTER to

set the resolution bandwidth to 1 kHz.

7. Press the VBW Manual soft key and use the Up/Down arrow key to select 30 Hz. Press ENTER to

set the video bandwidth to 30 Hz.

8. Press the FREQ/SPAN key and the CENTER soft key.

9. Enter 1000 and press the ENTER key to set the center frequency to 1000 MHz.

10. Press the SPAN soft key and enter 0.1. Press the ENTER key to set the span to 0.100 MHz.

11. Press the AMPLITUDE key.

12. Press the REF LEVEL soft key and enter –27. Press ENTER to set the reference level to –27 dBm.

13. Press the MARKER key, then the M1 soft key.

14. Press EDIT and enter 1000. Press ENTER to set the M1 marker frequency to 1000 MHz.

15. Press the BACK soft key and the M2 soft key.

16. Press EDIT and enter 1000.03. Press ENTER to set the M2 marker frequency to 1000.03 MHz (30

kHz higher than the center frequency).

17. Press the DELTA (M2–M1) soft key.

18. Press the SINGLE/CONT key and read and record the D2 reading

19. Press the SINGLE/CONT key to read and record five values, then calculate the average of the five

recorded values.

20. Subtract 30 dB from the average value and verify that the result is £–75 dBc/Hz. (For example:

–45 dBc measured – 30 dB = –75 dBc/Hz.)

NOTE: The measured value is converted to dBc/Hz using the following formula:

()

[]

dBc Hz measured dBc RBW

/log

=- - 10 1

At 1 kHz RBW, ()

10 30

log

RBW

Hz =,sodBc Hz measured dBc/=- - 30.

21. Press the BACK soft key and the M3 soft key.

22. Press the EDIT key and enter 999.97. Press MHz to set the M3 marker frequency to 999.97 MHz

(30 kHz lower than the center frequency).

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23. Press the DELTA (M3-M1) soft key.

24. Press the SINGLE/CONT key. Read and record the D3 reading.

25. Press the SINGLE/CONT key to read and record five values, then calculate the average of the five

recorded values.

26. Subtract 30 dB from the average value and verify that the result is £–75 dBc/Hz. (For example:

–45 dBc measured – 30 dB = –75 dBc/Hz.)

5. Spectrum Analyzer Second Harmonic Distortion Test

The following test can be used to verify the input related spurious response of the Spectrum Master.

a. Equipment Required:

·Anritsu MG3692A Synthesized Signal Source with options 2A, 4 and 15A, or equivalent

·Anritsu 34RSN50 50 ohm adapter or equivalent

·Anritsu 15NNF50-1.5C RF Coaxial Cable or equivalent

·10 MHz Reference Standard

·50 MHz Low Pass Filter (Anritsu part number 1030-96)

·BNC male to BNC male coaxial cable

b. Procedure:

1. Connect the 10 MHz reference source to the Anritsu MG3692A Synthesized Signal Source.

2. Connect one end of the 50 MHz Low Pass Filter to the output of the source and the other end to

the Spectrum Master RF Input with the coaxial cable.

3. Connect the external power supply (Anritsu part number 40-168) to the Spectrum Master.

4. On the Spectrum Master, press and hold the ESCAPE/CLEAR key, then press the ON/OFF key to

turn on the Spectrum Master. (This sets the instrument to the factory preset state.)

5. Turn on the 10 MHz reference source and the Anritsu MG3692A Synthesized Signal Source.

6. Set the MG3692A output to 40 MHz CW, with an RF output level of –30 dBm.

NOTE: Before continuing, allow a 30-minute warm up for the internal circuitry to stabilize.

7. Press the AMPLITUDE key and the Ref Level soft key.

8. Enter –27 and press the ENTER key to set the Reference Level to –27 dBm.

9. Press the Scale soft key and enter 7then press ENTER.

10. Press the Atten/Preamp soft key and then the Manual soft key.

11. Enter 0 and press ENTER to set the attenuation to 0 dB.

12. Press the FREQ/SPAN key and then the Center soft key.

13. Enter 40 and press the MHz soft key to set the center frequency to 40 MHz.

14. Press the Span soft key and enter 0.2. Press the MHz soft key to set the span to 0.200 MHz.

15. Press the BW/SWEEP key and the Bandwidth soft key.

16. Press the RBW Manual soft key and use the Up/Down arrow key to select 10 kHz. Press ENTER to

set the resolution bandwidth to 10 kHz.

17. Press the VBW Manual soft key and use the Up/Down arrow key to select 3 kHz. Press ENTER to

set the video bandwidth to 3 kHz.

18. Press the MARKER key, then the M1 soft key.

19. Select the Edit soft key, then enter 40. Press the MHz soft key to set M1 to 40 MHz .

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20. On the MG3692A Synthesized Signal Source, adjust the output level so that the M1 reading of

Spectrum Master is –30 dBm at 40 MHz.

21. On the Spectrum Master, press the FREQ/SPAN key and then the Center soft key.

22. Enter 80 and press the MHz soft key to set the center frequency to 80 MHz.

23. Press the MARKER key and the M1 soft key.

24. Select the Edit soft key, then enter 80. Press the MHz soft key to set M1 to 80 MHz .

25. Record the amplitude of the signal at M1 80 MHz:

Second Harmonic Level @ 80 MHz = ________ dBm

26. Convert this measured value to dBc using the following formula:

Input Related Spurious Response (dBc) = [Second Harmonic Level @ 80 MHz]

+ 30 dBm = _____ dBc

Specifications for this measurement are –45 dBc with –30 dBm into the first mixer.

6. Spectrum Analyzer Residual Spurious Response Test

The following test can be used to verify the residual spurious response of the Spectrum Master. This test

is performed using the positive peak detection mode.

a. Equipment Required:

·Anritsu 28N50-2 or SM/PL 50 ohm Termination or equivalent

b. Procedure:

1. Connect the 50 ohm termination to the Spectrum Master RF Input.

2. On the Spectrum Master, press and hold the ESCAPE/CLEAR key, then press the ON/OFF key to

turn on the Spectrum Master. (This sets the instrument to the factory preset state.)

NOTE: Before continuing, allow a 30-minute warm up for the internal circuitry to stabilize.

3. Press the AMPLITUDE key and the Ref Level soft key.

4. Enter –75 and press the ENTER key to set the Reference Level to –75 dBm.

5. Press the Scale soft key and enter 5, then press ENTER.

6. Press the BW/SWEEP key and the Bandwidth soft key.

7. Press the RBW Manual soft key and use the Up/Down arrow key to select 10 kHz. Press ENTER to

set the resolution bandwidth to 10 kHz.

8. Press the VBW Manual soft key and use the Up/Down arrow key to select 3 kHz and press ENTER to

set the video bandwidth to 3 kHz.

9. Press the FREQ/SPAN key and the Start soft key.

10. Enter 100 and press the kHz soft key to set the start frequency to 100 kHz.

11. Press the Stop soft key and enter 10, then press the MHz soft key to set the stop frequency to 10

MHz.

12. Wait till one full sweep is complete.

13. Press the MARKER key and then the M1 soft key.

14. Press the Marker To Peak soft key.

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15. Record the M1 amplitude reading and verify whether it is less than or equal to –90 dBm.

NOTE: If a spur with an amplitude larger than –80 dBm occurs, wait another full sweep and observe

whether the spur occurs at the same point on the second sweep. If the spur does not occur at the

same point on the second sweep, then the spur on the first sweep was not real.

16. Press the FREQ/SPAN key and the Start soft key.

17. Enter 10 and press the MHz soft key to set the start frequency to 10 MHz.

18. Press the Stop soft key and enter 1000, then press the MHz soft key to set the stop frequency to

1000 MHz.

19. Wait until one full sweep is complete.

20. Press the MARKER key and record the M1 amplitude reading and verify it is £–90 dBm.

NOTE: If a spur with an amplitude larger than –90 dBm occurs, wait another full sweep and observe

whether the spur occurs at the same point on the second sweep. If the spur does not occur at the

same point on the second sweep, then the spur on the first sweep was not real.

21. Press the FREQ/SPAN key and the Start soft key.

22. Enter 1000 and press the MHz soft key to set the start frequency to 1000 MHz.

23. Press the Stop soft key and enter 2000, then press the MHz soft key to set the stop frequency to

2000 MHz.

24. Wait until one full sweep is complete.

25. Press the MARKER key and record the M1 amplitude reading and verify it is £–90 dBm.

NOTE: If a spur with an amplitude larger than –90 dBm occurs, wait another full sweep and observe

whether the spur occurs at the same point on the second sweep. If the spur does not occur at the

same point on the second sweep, then the spur on the first sweep was not real.

26. Press the FREQ/SPAN key and the Start soft key.

27. Enter 2000 and press the MHz soft key to set the start frequency to 2000 MHz.

28. Press the Stop soft key and enter 3000, then press the MHz soft key to set the stop frequency to

3000 MHz.

29. Wait until one full sweep is complete.

30. Press the MARKER key and record the M1 amplitude reading and verify it is £–90 dBm.

NOTE: If a spur with an amplitude larger than –90 dBm occurs, wait another full sweep and observe

whether the spur occurs at the same point on the second sweep. If the spur does not occur at the

same point on the second sweep, then the spur on the first sweep was not real.

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7. Spectrum Analyzer Resolution Bandwidth Accuracy Test

The following test can be used to verify the resolution bandwidth accuracy of the Spectrum Master at dif-

ferent frequencies.

a. Equipment Required:

·Anritsu MG3692A Synthesized Signal Source with options 2A, 4 and 15, or equivalent

·Anritsu 34RSN50 50 ohm adapter or equivalent

·Anritsu 15NNF50-1.5C RF Coaxial Cable or equivalent

·10 MHz Reference Standard

·BNC male to BNC male coaxial cable

b. Procedure:

1. Connect the 10 MHz reference source to the Anritsu MG3692A Synthesized Signal Source.

2. Connect the output of the Anritsu MG3692A Synthesized Signal Source to the Spectrum Master

RF Input.

3. On the Spectrum Master, press and hold the ESCAPE/CLEAR key, then press the On/Off key to

turn on the Spectrum Master. (This sets the instrument to the factory preset state.)

NOTE: Before continuing, allow a 30-minute warm up for the internal circuitry to stabilize.

4. Set the MG3692A output to 1 GHz, with an RF output level of –30 dBm.

5. Press the AMPLITUDE key and the Ref Level soft key.

6. Enter –27 and press the ENTER key to set the Reference Level to –27 dBm.

7. Press the Scale soft key and enter 3, then press ENTER.

8. Press the FREQ/SPAN key and the Center soft key.

9. Enter 1and press the GHz soft key to set the center frequency to 1 GHz.

NOTE: The Measured Occupied BW value for each RBW setting can be recorded in Table 1, page 8.

1 MHz RBW Test

10. Press the Span soft key, enter 1.5 and press the MHz soft key to set the span to 1.5 MHz.

11. Press the BW/SWEEP key and the Bandwidth soft key.

12. Press the RBW Manual soft key and use the Up/Down arrow key to select 1 MHz. Press ENTER to

set the resolution bandwidth to 1 MHz.

13. Press the VBW Manual soft key and use the Up/Down arrow key to select 3 kHz and press ENTER to

set the video bandwidth to 3 kHz and select BACK.

14. Press the MEAS key, the OBW soft key, the dBc soft key, and then the ENTER key.

15. Press the MEAS key, then the MARKER key. Press the M2 soft key and then the Delta (M2–M1) soft

key. The displayed D2 frequency should be ± 5% of the RBW.

300 kHz RBW Test

16. Press the FREQ/SPAN key.

17. Press the Span soft key, enter 450 and press the kHz soft key to set the span to 450 kHz.

18. Press the BW/SWEEP key and the Bandwidth soft key.

19. Press the RBW Manual soft key and use the Up/Down arrow key to select 300 kHz. Press ENTER to

set the resolution bandwidth to 300 kHz and select BACK.

20. Press the MEAS key and then the MARKER key.

21. Press the M2 soft key. The displayed D2 frequency should be ± 5% of the RBW.

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